Most of the time people say they're curious on the internet, they're actually feeling dismissive, but just need more ammo to be able to dismiss the person. Which makes it skepticism, not curiosity.
I really was curious! But that isn't mutually exclusive with skepticism.
I think "furious", the more I think of it, is an anger regarding lack (ie if someone's house gets vandalized and the feel a loss in property value). Curiosity could culminate with inquisitiveness, which functionally feels like adopting new beliefs. Skepticism can culminate with dismissiveness. So as long as you're open to the possibility that your mind could be changed, it counts as curiosity, I suppose.